126211985 has 8 divisors (see below), whose sum is σ = 151537920. Its totient is φ = 100913904.

The previous prime is 126211949. The next prime is 126211997. The reversal of 126211985 is 589112621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126211985 - 2¹⁰ = 126210961 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4826 + ... + 16604.

It is an arithmetic number, because the mean of its divisors is an integer number (18942240).

Almost surely, 2^126211985 is an apocalyptic number.

It is an amenable number.

126211985 is a deficient number, since it is larger than the sum of its proper divisors (25325935).

126211985 is a wasteful number, since it uses less digits than its factorization.

126211985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13927.

The product of its digits is 8640, while the sum is 35.

The square root of 126211985 is about 11234.4107544633. The cubic root of 126211985 is about 501.6107851698.

The spelling of 126211985 in words is "one hundred twenty-six million, two hundred eleven thousand, nine hundred eighty-five".